package com.zhang.hadoop.service.mapReduce;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;

/**
 * Created by zhang yufei on 2018/9/6.
 */
public class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable> {

    @Override
    protected void reduce(Text key, Iterable<IntWritable> values, Context context) throws IOException,InterruptedException{
        int count=0;
        for (IntWritable value:values){
            count+=value.get();
        }
        context.write(key,new IntWritable(count));
    }
}
